∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST ∼ Summer Hours: Mon - Fri. 8 am to 5 pm CST

OE GM Knock Sensor for GM EFI Marine engines that use the single wire sensor including PCM. INDMAR, MERCRUISER, MARINE POWER.

WARNING: Do NOT drop these on hard surfaces (concrete) the crystal inside can break and render the sender useless

Typically found threaded into the drain hole on the cylinder block, and removed for winterizing to drain the block.

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Total price$123.85
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